The 6428T from ARRA is a line stretcher that operates from DC to 12 GHz. It has a phase adjustment of 15°/ GHz and an insertion delay of less than 0.348 nsec. This line stretcher has an insertion loss of 0.5 dB at 12 GHz and can handle up to 100 watts of average power. It has SMA connectors at the input and output.